A fair coin is tossed. If it comes up heads, a single die is rolled. If it comes up tails, two dice are rolled. Given that a 3 was rolled, but you do not know if one or two dice were rolled, what is the probability that the coin came up heads

How do you do this geometry problem

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m